When we remodeled, we had a tub replaced. I’ve been looking high and low for that receipt and can’t find it. I think just for the tub and plumbing it was over $1K.
The reason I say that is because it ended up being a royal pain. The drain for the new tub didn’t match the drain location for the old tub, so pipe work had to be done.
When we remodeled downstairs, we had that tub refinished instead. Cost us about $450 (I did find that receipt) and still looks good 4 years later. The finish isn’t as smooth as I would have liked, but no peeling so far. Of course, we don’t use that tub much either.